Finding the Fourth Proportional to 2,380.86, 3,571.08 and 919.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.86 : 3,571.08 = 919.62 : x
2. Step 2: Convert to fraction form
   2,380.86/3,571.08 = 919.62/x
3. Step 3: Cross multiply
   2,380.86x = 3,571.08 × 919.62
4. Step 4: Simplify right side
   2,380.86x = 3,284,036.59
5. Step 5: Solve for x
   x = 3,284,036.59/2,380.86
6. Step 6: Final answer
   x = 1,379.35